My rear universal joint is located about 2.5 inches directly under a cross bar under the rear seat. Before I got this rig on the road I thought that would probably cause me trouble, and I was right - the two collided a couple times in the little amount of time I drove it last summer. The car has what looks to be 4.5" OD coils approximately 12" in height. I am wondering what I'm missing when I consider just increasing my spring height 2-3 inches. I would like a bit more of a rake on the body anyway. I know I would have to adjust the hairpin connections on the rear end and check my shock absorber length. But it seems like a simple fix - maybe it should have had the longer coils all along! This was all done before I got it. I would appreciate any thoughts on the subject.